hey all. So heres whats up. I just spent 6 weeks building houses out of tires and bottles. not sure if anyone is familiar with earthships? anyway I plan to build a concrete bowl with the same concepts involved.

Basically I'm looking for ideas and advise from anyone with experience building concrete ramps.

run down:

gonna ram tires with dirt using sledge hammers, stack them and batter them into whatever shape the crew wants to do. I'm thinkin a kidney bowl maybe somthing with a spine whatever..

fill in small spaces with with bottles, cans and concrete basically using them as bricks to make a shape we can work with. they hold no structural support, just save concrete.

rebar and remesh it

Prob gonna have to make some kind of wooden frame/guides to keep a good shape or just freestlye it i dunno

and then float the shit outa it.

Boom you got a fackin hippie garbage ramp.

none us have built a bowl before.. some of us have some concrete experience.. I think its do-able. let me know what you think. I'm wondering about bending and metal coping installation??

How hard are these tyres going to be? any give at all will mean you're going to want concrete about 4 inch thick (to make sure it doesn't crack and destroy all the hard work before the crete-ing of course) there's a lot to take into account when thinking about the coping aswell, personally i think the best (and most satisfying to grind) is just to smooth the transition into a beveled edge so the whole thing is one solid object then wax the hell out of it to make sure it grinds/doesn't get chipped away, making a metal coping would be a hell of a job.

bumpy waxed nopping, if you use anything else the crete around it always chips away from grind vibrations n shit..... we do use pretty cheap shitty crete to be fair though. just depends how often you're gunna be smashing a spot, there's always a good few people heshing our ramps to death and some are 2 inch crete on a solid backdrop and lasting very well.